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https://gitlab.freedesktop.org/cairo/cairo.git
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992f74d884
We frequently use '-' within the test name or format name and so we encounter confusion as '-' is also used as the field separator. At times this has caused a new test to break an old test because the new test would match one of the old test's target specific reference images. So switch everything over to use '.' between fields (test name, target, format, subtest, etc.).
252 lines
9 KiB
C
252 lines
9 KiB
C
/*
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* Copyright © 2005 Red Hat, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Red Hat, Inc. not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Red Hat, Inc. makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Carl Worth <cworth@cworth.org>
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*/
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#include "cairo-test.h"
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#include <stdlib.h>
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#define WIDTH 2
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#define HEIGHT 2
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static cairo_status_t
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no_memory_error (void *closure, unsigned char *data, unsigned int size)
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{
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return CAIRO_STATUS_NO_MEMORY;
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}
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static cairo_status_t
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read_error (void *closure, unsigned char *data, unsigned int size)
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{
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return CAIRO_STATUS_READ_ERROR;
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}
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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const cairo_test_context_t *ctx = cairo_test_get_context (cr);
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char *filename;
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cairo_surface_t *surface;
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xasprintf (&filename, "%s/%s", ctx->srcdir,
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"create-from-png.ref.png");
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surface = cairo_image_surface_create_from_png (filename);
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if (cairo_surface_status (surface)) {
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cairo_test_log (ctx, "Error reading PNG image %s: %s\n",
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filename,
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cairo_status_to_string (cairo_surface_status (surface)));
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free (filename);
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return CAIRO_TEST_FAILURE;
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}
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free (filename);
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cairo_set_source_surface (cr, surface, 0, 0);
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cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
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cairo_paint (cr);
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cairo_surface_destroy (surface);
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return CAIRO_TEST_SUCCESS;
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}
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static cairo_test_status_t
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preamble (cairo_test_context_t *ctx)
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{
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char *filename;
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cairo_surface_t *surface;
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cairo_status_t status;
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cairo_test_status_t result = CAIRO_TEST_SUCCESS;
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surface = cairo_image_surface_create_from_png ("___THIS_FILE_DOES_NOT_EXIST___");
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if (cairo_surface_status (surface) != CAIRO_STATUS_FILE_NOT_FOUND) {
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cairo_test_log (ctx, "Error: expected \"file not found\", but got: %s\n",
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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}
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cairo_surface_destroy (surface);
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surface = cairo_image_surface_create_from_png_stream (no_memory_error, NULL);
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if (cairo_surface_status (surface) != CAIRO_STATUS_NO_MEMORY) {
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cairo_test_log (ctx, "Error: expected \"out of memory\", but got: %s\n",
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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}
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cairo_surface_destroy (surface);
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surface = cairo_image_surface_create_from_png_stream (read_error, NULL);
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if (cairo_surface_status (surface) != CAIRO_STATUS_READ_ERROR) {
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cairo_test_log (ctx, "Error: expected \"read error\", but got: %s\n",
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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}
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cairo_surface_destroy (surface);
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/* cheekily test error propagation from the user write funcs as well ... */
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xasprintf (&filename, "%s/%s", ctx->srcdir,
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"create-from-png.ref.png");
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surface = cairo_image_surface_create_from_png (filename);
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if (cairo_surface_status (surface)) {
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cairo_test_log (ctx, "Error reading PNG image %s: %s\n",
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filename,
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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} else {
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status = cairo_surface_write_to_png_stream (surface,
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(cairo_write_func_t) no_memory_error,
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NULL);
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if (status != CAIRO_STATUS_NO_MEMORY) {
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cairo_test_log (ctx, "Error: expected \"out of memory\", but got: %s\n",
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cairo_status_to_string (status));
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result = CAIRO_TEST_FAILURE;
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}
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status = cairo_surface_write_to_png_stream (surface,
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(cairo_write_func_t) read_error,
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NULL);
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if (status != CAIRO_STATUS_READ_ERROR) {
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cairo_test_log (ctx, "Error: expected \"read error\", but got: %s\n",
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cairo_status_to_string (status));
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result = CAIRO_TEST_FAILURE;
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}
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/* and check that error has not propagated to the surface */
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if (cairo_surface_status (surface)) {
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cairo_test_log (ctx, "Error: user write error propagated to surface: %s",
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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}
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}
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cairo_surface_destroy (surface);
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free (filename);
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/* check that loading alpha/opaque PNGs generate the correct surfaces */
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xasprintf (&filename, "%s/%s", ctx->srcdir,
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"create-from-png.alpha.ref.png");
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surface = cairo_image_surface_create_from_png (filename);
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if (cairo_surface_status (surface)) {
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cairo_test_log (ctx, "Error reading PNG image %s: %s\n",
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filename,
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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} else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_ARGB32) {
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cairo_test_log (ctx, "Error reading PNG image %s: did not create an ARGB32 image\n",
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filename);
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result = CAIRO_TEST_FAILURE;
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}
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free (filename);
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cairo_surface_destroy (surface);
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xasprintf (&filename, "%s/%s", ctx->srcdir,
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"create-from-png.ref.png");
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surface = cairo_image_surface_create_from_png (filename);
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if (cairo_surface_status (surface)) {
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cairo_test_log (ctx, "Error reading PNG image %s: %s\n",
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filename,
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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} else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) {
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cairo_test_log (ctx, "Error reading PNG image %s: did not create an RGB24 image\n",
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filename);
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result = CAIRO_TEST_FAILURE;
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}
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free (filename);
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cairo_surface_destroy (surface);
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/* check paletted PNGs */
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xasprintf (&filename, "%s/%s", ctx->srcdir,
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"create-from-png.indexed-alpha.ref.png");
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surface = cairo_image_surface_create_from_png (filename);
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if (cairo_surface_status (surface)) {
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cairo_test_log (ctx, "Error reading PNG image %s: %s\n",
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filename,
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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} else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_ARGB32) {
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cairo_test_log (ctx, "Error reading PNG image %s: did not create an ARGB32 image\n",
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filename);
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result = CAIRO_TEST_FAILURE;
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}
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free (filename);
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cairo_surface_destroy (surface);
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xasprintf (&filename, "%s/%s", ctx->srcdir,
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"create-from-png.indexed.ref.png");
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surface = cairo_image_surface_create_from_png (filename);
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if (cairo_surface_status (surface)) {
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cairo_test_log (ctx, "Error reading PNG image %s: %s\n",
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filename,
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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} else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) {
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cairo_test_log (ctx, "Error reading PNG image %s: did not create an RGB24 image\n",
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filename);
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result = CAIRO_TEST_FAILURE;
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}
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free (filename);
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cairo_surface_destroy (surface);
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/* check grayscale PNGs */
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xasprintf (&filename, "%s/%s", ctx->srcdir,
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"create-from-png.gray-alpha.ref.png");
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surface = cairo_image_surface_create_from_png (filename);
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if (cairo_surface_status (surface)) {
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cairo_test_log (ctx, "Error reading PNG image %s: %s\n",
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filename,
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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} else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_ARGB32) {
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cairo_test_log (ctx, "Error reading PNG image %s: did not create an ARGB32 image\n",
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filename);
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result = CAIRO_TEST_FAILURE;
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}
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free (filename);
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cairo_surface_destroy (surface);
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xasprintf (&filename, "%s/%s", ctx->srcdir,
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"create-from-png.gray.ref.png");
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surface = cairo_image_surface_create_from_png (filename);
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if (cairo_surface_status (surface)) {
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cairo_test_log (ctx, "Error reading PNG image %s: %s\n",
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filename,
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cairo_status_to_string (cairo_surface_status (surface)));
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result = CAIRO_TEST_FAILURE;
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} else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) {
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cairo_test_log (ctx, "Error reading PNG image %s: did not create an RGB24 image\n",
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filename);
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result = CAIRO_TEST_FAILURE;
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}
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free (filename);
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cairo_surface_destroy (surface);
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return result;
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}
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CAIRO_TEST (create_from_png,
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"Tests the creation of an image surface from a PNG file",
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"png", /* keywords */
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NULL, /* requirements */
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WIDTH, HEIGHT,
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preamble, draw)
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